This is contamination, which we do; there are various types, for example environmental, forest, sonic contamination among others. In the environment, we can do many things to avoid having negative consequences, for example the recycling.
The people think the material is first,but no always, obviously the money is necessary for living, to buy things, etc. Before, in that time the people didn’t have money so the life was difficult, but they were happy... :) in this moment the money is very important, jum this is very bad, but we don’t do anything.